Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 772 · 40 questions

Engineer's tip (Test fairly, record honestly): Prototype = an early model made to test an idea. Fair test: change one thing, keep the rest the same, measure and record every result. Mean of three tests = (first + second + third) ÷ 3.

1. 1.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 210 g and design C held 160 g. Which design was the weakest? (a) design C (b) design B (c) design A
2. 2.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
3. 3.True or false: to change only one thing is good testing. (a) False (b) True
4. 4.True or false: to change only one thing is poor testing. (a) False (b) True
5. 5.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
6. 6.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
7. 7.🧪 A paper bridge was tested three times. It held 230 g, 110 g and 230 g. What is the mean (average) load it held, in grams?
8. 8.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) sketch three ideas (d) choose and draw one
9. 9.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) build it with straws (c) load it with coins (d) sketch three ideas
10. 10.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
11. 11.True or false: to use the same load is poor testing. (a) False (b) True
12. 12.🧪 A paper bridge was tested three times. It held 300 g, 190 g and 170 g. What is the mean (average) load it held, in grams?
13. 13.🧪 A paper bridge was tested three times. It held 280 g, 250 g and 220 g. What is the mean (average) load it held, in grams?
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the weakest? (a) design C (b) design A (c) design B
15. 15.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) choose and draw one (b) sketch three ideas
16. 16.🔍 Which is the odd one out? (a) change lots at once (b) hide a failed test (c) test it only once (d) change only one thing
17. 17.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to avoid testing (d) to decorate a room
18. 18.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
19. 19.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
20. 20.True or false: to measure the same way is poor testing. (a) False (b) True
21. 21.True or false: to hide a failed test is good testing. (a) True (b) False
22. 22.True or false: to skip writing results is good testing. (a) False (b) True
23. 23.🧪 A paper bridge was tested three times. It held 320 g, 200 g and 380 g. What is the mean (average) load it held, in grams?
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 130 g and design C held 230 g. Which design was the strongest? (a) design B (b) design A (c) design C
25. 25.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) change only one thing (d) use a new load each time
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 290 g. Which design was the strongest? (a) design A (b) design B (c) design C
27. 27.🧪 A paper bridge was tested three times. It held 240 g, 90 g and 120 g. What is the mean (average) load it held, in grams?
28. 28.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) strengthen the weak part (c) sketch three ideas (d) read the challenge rules
29. 29.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
30. 30.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) the final product (d) an early test model
31. 31.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
32. 32.True or false: to guess, do not measure is good testing. (a) False (b) True
33. 33.🧪 A paper bridge was tested three times. It held 210 g, 190 g and 170 g. What is the mean (average) load it held, in grams?
34. 34.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
35. 35.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 310 g. Which design was the strongest? (a) design A (b) design C (c) design B
37. 37.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?
38. 38.🧪 A paper bridge was tested three times. It held 220 g, 150 g and 80 g. What is the mean (average) load it held, in grams?
39. 39.True or false: to test it only once is good testing. (a) True (b) False
40. 40.True or false: to change lots at once is good testing. (a) False (b) True

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